IT41035: Application terminates with FDC XC130003 due to memory exception(SIGSEGV) in TraceEntry in mqccred exit

APAR status

• Closed as program error.

Error description

• Application unexpectedly terminates due to SIGSEGV memory
  exception in mqccred exit
  with function TraceEntry() from a non IBM MQ library at the top
  of the stack.
  
  Probe Id          :- XC130003
  Component         :- xehExceptionHandler
  Arith1            :- 11 (0xb)
  Comment1          :- SIGSEGV: address not mapped(0x1c)
  
  O/S Call Stack for current thread
  ...
  /opt/non/mq/lib/libxyz.so(TraceEntry+0x185)[0x7f0e82d73ff5]
  /var/mqm/exits64/mqccred_r(ChlExit+0x87)[0x7f0e7d0fd617]
  ...
  
  MQM Function Stack
  ImqQueueManager::connect
  MQCONN
  MQCONN
  reqDoConnect
  reqConnectChl
  rriInitSess
  rriInitExits
  rriInitExit
  rriCALL_EXIT
  xcsFFST
  
  The exit amqlcel0 might also cause the same problem.
  

Local fix

• Change the function 'TraceEntry' name in the application if
  possible.
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  Users using mqccred or amqlcel0 exits with an application that
  uses a function called "TraceEntry".
  
  
  Platforms affected:
  MultiPlatform
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  The IBM MQ exit mqccred was using a function with name
  "TraceEntry".  An IBM MQ application which used the mqccred
  exit was also using the same function name "TraceEntry". This
  caused a function name conflict resulting in a SIGSEGV
  in the exit and termination of the application.
  

Problem conclusion

• IBM MQ exits mqccred and amqlcel0 have been modified to prevent
  function name conflict.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v9.2 LTS   9.2.0.7
  v9.3 LTS   9.3.0.2
  v9.x CD    9.3.2
  
  The latest available maintenance can be obtained from
  'WebSphere MQ Recommended Fixes'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
  
  If the maintenance level is not yet available information on
  its planned availability can be found in 'WebSphere MQ
  Planned Maintenance Release Dates'
  http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
  ---------------------------------------------------------------
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  MQ BASE V9.2

• Fixed component ID

  5724H7281

Applicable component levels